Cover for air processing unit



FIG. 1 is a top, front, left side perspective view of a cover for air processing unit showing the new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a front, right side perspective view thereof;

FIG. 4 is a rear perspective view thereof;

FIG. 5 is a top, rear perspective view thereof; and,

FIG. 6 is a front, left side perspective view thereof.

The portions of the design depicted in broken lines form no part of the claimed design. 

The ornamental design for a cover for air processing unit, as shown and described. 